TLV431AIDBVR1G4

Overview

The TLV431AIDBVR1G4 is a low-voltage adjustable precision shunt regulator manufactured by Texas Instruments. It operates within an input voltage range of 2.5 V to 6 V and provides an initial accuracy of 1%. The device features a temperature coefficient of 138 PPM/°C and supports a maximum cathode current of 15 mA with a minimum operating current of 100 µA. It is housed in a SOT-23-5 surface-mount package and functions across a temperature range of -40°C to +85°C.

Feature Summary

• Provides precise voltage regulation through an adjustable reference output ranging from 1.24 V to 6 V.
• Ensures stable performance with high initial accuracy and low temperature drift characteristics.
• Designed for compact electronic applications utilizing a small five-pin surface-mount footprint.

Applications

• Precision voltage regulation in portable battery-powered devices
• Reference voltage source for analog-to-digital converters
• Feedback control loops in switching power supplies

Procurement Notes

Verify the specific suffix G4 indicates lead-free compliance and tape-and-reel packaging configuration. Confirm that the SOT-23-5 package dimensions match the target PCB layout requirements. Ensure the operating environment remains within the specified -40°C to +85°C thermal limits to maintain the stated 1% accuracy specification during operation.

Selection Notes

Select this component when a low-cost, high-accuracy reference is required for space-constrained designs. The SOT-23-5 package offers a balance between pin count and board area efficiency. Consider the 15 mA current limit for load driving capabilities and ensure the application does not require shutdown functionality, as this variant lacks that feature.

Part Context

This part belongs to the TLV431A series of adjustable shunt regulators. It serves as a cost-effective alternative to fixed voltage references in circuits requiring programmable output levels. The device integrates a bandgap reference and error amplifier to maintain regulation stability under varying load and temperature conditions.

Replacement Considerations

Direct substitutes include the TLV431AIDBVT and TLV431AIDBZR, which share similar electrical characteristics but differ in packaging options such as cut tape or reel configurations. Verify compatibility regarding pinout assignments and thermal performance before substitution.